<template>
  <!-- 两步验证 -->
  <a-modal
    centered
    v-model="visible"
    @cancel="handleCancel"
    :maskClosable="false">
    <div slot="title" :style="{ textAlign: 'center' }">两步验证</div>
    <template slot="footer">
      <div :style="{ textAlign: 'center' }">
        <a-button key="back" @click="handleCancel">返回</a-button>
        <a-button key="submit" type="primary" :loading="stepLoading" @click="handleStepOk">
          继续
        </a-button>
      </div>
    </template>

    <a-spin :spinning="stepLoading">
      <a-form layout="vertical" :auto-form-create="(form)=>{this.form = form}">
        <div class="step-form-wrapper">
          <p style="text-align: center" v-if="!stepLoading">请在手机中打开 Google Authenticator 或两步验证 APP<br/>输入 6 位动态码</p>
          <p style="text-align: center" v-else>正在验证..<br/>请稍后</p>
          <a-form-item
            :style="{ textAlign: 'center' }"
            hasFeedback
            fieldDecoratorId="stepCode"
            :fieldDecoratorOptions="{rules: [{ required: true, message: '请输入 6 位动态码!', pattern: /^\d{6}$/, len: 6 }]}">
            <a-input :style="{ textAlign: 'center' }" @keyup.enter.native="handleStepOk" placeholder="000000"/>
          </a-form-item>
          <p style="text-align: center">
            <a @click="onForgeStepCode">遗失手机?</a>
          </p>
        </div>
      </a-form>
    </a-spin>
  </a-modal>
</template>

<script>
  export default {
    name: 'TwoStepCaptcha',

    props: {
      visible: {
        type: Boolean,
        default: false
      }
    },

    data () {
      return {
        stepLoading: false,

        form: null
      }
    },

    methods: {
      handleStepOk () {
        const vm = this
        this.stepLoading = true
        this.form.validateFields((err, values) => {
          if (!err) {
            console.log('values', values)
            setTimeout(() => {
              vm.stepLoading = false
              vm.$emit('success', { values })
            }, 2000)
            return
          }
          this.stepLoading = false
          this.$emit('error', { err })
        })
      },
      handleCancel () {
        this.visible = false
        this.$emit('cancel')
      },
      onForgeStepCode () {

      }
    }
  }
</script>

<style lang="less" scoped>
  .step-form-wrapper {
    margin: 0 auto;
    width: 80%;
    max-width: 400px;
  }
</style>
